Robust Flatness-based Multi-controllers Approach
In this paper, a robust fault tolerant control reconfiguration is
proposed. For identified models whose parameters change according to operating
conditions, it is convenient to design a reconfiguration control strategy. This
approach switches on-line the right controller to achieve the same performances
for a given objective. This reconfiguration strategy is based on robust
flatness-based switching control and developed in discrete-time framework in
order to track a reference trajectory starting from a flat output variable. For
each model, a corresponding flatness-based controller is designed and
consequently, a multi-controller structure is obtained. The switching process is
based on the minimization of a criterion. The performances obtained by
switching in terms of tracking trajectory and disturbance fault rejection are
discussed in this paper. The stability of the corresponding switched
discrete-time linear systems is given.
Robust Flatness-based Multi-controllers Approach.
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Robust Flatness-based Multi-controllers Approach.
Autori:
Hajer
GHARSALLAOUI
Hajer
GHARSALLAOUI
[1]
[1]
Ecole Nationale d’Ingénieurs de Tunis
Rezumat
In this paper, a robust fault tolerant control reconfiguration is
proposed. For identified models whose parameters change according to operating
conditions, it is convenient to design a reconfiguration control strategy. This
approach switches on-line the right controller to achieve the same performances
for a given objective. This reconfiguration strategy is based on robust
flatness-based switching control and developed in discrete-time framework in
order to track a reference trajectory starting from a flat output variable. For
each model, a corresponding flatness-based controller is designed and
consequently, a multi-controller structure is obtained. The switching process is
based on the minimization of a criterion. The performances obtained by
switching in terms of tracking trajectory and disturbance fault rejection are
discussed in this paper. The stability of the corresponding switched
discrete-time linear systems is given.
Cuvinte cheie:
Flatness, tracking trajectory, robustness, switching, multi-controllers, reconfiguration.
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